CN220956273U

CN220956273U - Eight-gear shifting cylinder

Info

Publication number: CN220956273U
Application number: CN202322929101.4U
Authority: CN
Inventors: 吴梵; 袁永祥
Original assignee: Weihai Bosheng Pneumatics & Hydraulics Co ltd
Current assignee: Weihai Bosheng Pneumatics & Hydraulics Co ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-05-14
Anticipated expiration: 2033-10-31

Abstract

The utility model discloses an eight-gear shifting cylinder which belongs to the technical field of gear shifting driving parts, and comprises a cylinder body, wherein a push rod is arranged at one end of the cylinder body, a mounting plate is arranged at one end of the push rod, a rubber sleeve is arranged at one side of the mounting plate, a lubricating oil groove is arranged at one side of one end of the cylinder body, which is provided with the push rod, a through groove is arranged at one side of the inner top end of the lubricating oil groove, a lantern ring is fixedly arranged at the inner side of one end of the cylinder body, an annular communicating pipe is arranged in the lantern ring, a plurality of oil outlet holes are arranged at the inner side of the annular communicating pipe, and a sealed space is formed between the rubber sleeve and the push rod by arranging the rubber sleeve between the mounting plate and the cylinder body.

Description

Eight-gear shifting cylinder

Technical Field

The utility model belongs to the technical field of gear shifting driving parts, and particularly relates to an eight-position gear shifting cylinder.

Background

The eight-gear shifting cylinder (hereinafter referred to as a shifting cylinder) is a main shifting driving part for operation and walking of a large workover rig or other heavy equipment, compressed air is input into the cylinder through different air inlets on a cylinder sleeve, a group of stop rings and pistons in the cylinder are controlled to logically move in combination, so that gradual extension and retraction of a piston push rod are realized, a step valve core of a hydraulic gearbox is driven to act step by step, oil inlet and oil discharge of each gear hydraulic clutch of the hydraulic gearbox are further controlled, the clutch state of each gear clutch is controlled, and finally gear shifting of the hydraulic gearbox is realized.

At present, the front end of current eight-bit shift cylinder, the front end of push rod is exposed outside when outwards extending mostly, leads to external dust or impurity probably to adhere to the surface of push rod, and then get into in the cylinder, causes serious friction to its inside mechanical seal spare part, and most push rods do not possess self-lubricating's function moreover, can lead to the frictional force increase of push rod and cylinder body or inside spare part after long-time use to reduce the life of inside spare part, for this we propose eight-bit shift cylinder.

Disclosure of utility model

The utility model aims to provide an eight-gear shifting cylinder so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an eight shift cylinder, includes cylinder body, logical groove and annular communicating pipe, the one end of cylinder body is equipped with the push rod, the one end fixed mounting board that is provided with of keeping away from of cylinder body of push rod, the one end periphery of push rod is located to the mounting panel cover, the mounting panel is provided with the rubber sleeve with the fixed front end of the one end casing of cylinder body be provided with the push rod between, the both ends of rubber sleeve are equipped with the lubrication groove through sealed waterproof glue with mounting panel and cylinder body fixed connection respectively, one side of the one end that the cylinder body was equipped with the push rod is equipped with lubrication groove, inside top one side of lubrication groove is equipped with logical groove, the bottom of logical groove extends to the cylinder body and is equipped with push rod one end and be close to the position of push rod periphery, and with the inside intercommunication of rubber sleeve, the cylinder body is equipped with the inboard fixed mounting of one end of push rod has the lantern ring, the inside of lantern ring is equipped with annular communicating pipe, one side of annular communicating pipe is through the inside sealed intercommunication of connecting pipe with the inside of oil groove, the inside of annular communicating pipe is equipped with a plurality of lubrication holes, the opening part and push rod contact.

Preferably, the rubber sleeve is of a double-layer structure, a spring is arranged in the sleeve body of the rubber sleeve, and two ends of the spring are fixedly connected with the mounting plate and one end, provided with the push rod, of the cylinder body respectively.

Preferably, the surface of oil outlet is equipped with the rubber ring, the rubber ring passes through mode fixed mounting and the oil outlet outside surface of veneer, the rubber ring contacts with the push rod, the inboard of rubber ring is the arc structure.

Preferably, a mechanical sealing element is arranged inside one end of the cylinder body, which is provided with the push rod, and the cylinder body is in sliding and sealing connection with the push rod through the mechanical sealing element.

Preferably, the top of lubrication groove is equipped with sealed lid, sealed lid is through inside sealing washer and the screw thread that is equipped with and the top oil filler point sealing connection of lubrication groove.

Preferably, eight air inlets are formed in one side of the outer portion of the cylinder body, and eight air inlets are formed in one side of the outer portion of the cylinder body at equal intervals.

Preferably, mounting holes are formed in two sides of the outer portion of the cylinder body, and the mounting holes are fixedly mounted on the outer portion of the cylinder body in a welding mode through mounting pieces.

Compared with the prior art, the utility model has the beneficial effects that:

1. Through set up sealing connection's rubber sleeve between mounting panel and cylinder body for form sealed space between rubber sleeve and the push rod, and under the support of spring, make the atmospheric pressure of space change when the push rod is flexible, the cooperation leads to the inside that the groove acted on the lubrication groove with the change of atmospheric pressure, makes its inside lubricating oil by the extrusion, along connecting pipe and annular communicating pipe, gets into in the oil outlet, thereby contacts with the push rod, realizes carrying out self-lubricating function to the push rod, has improved the life of push rod and cylinder body and the inside spare part of cylinder body greatly.

2. Through the rubber sleeve that is equipped with, not only formed a sealed space in the periphery of push rod, but also played good guard action to the push rod, effectually avoided the push rod to stretch out and draw back to the inside surface adhesion impurity or the dust of part of cylinder body, lead to friction increase between push rod and the cylinder, influence its life's condition.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a partial cross-sectional structure of the present utility model;

fig. 3 is an enlarged schematic view of fig. 2a according to the present utility model.

In the figure: 1. a cylinder body; 2. an air inlet hole; 3. a mounting hole; 4. a lubrication oil groove; 5. sealing cover; 6. a through groove; 7. a connecting pipe; 8. a collar; 9. an annular communicating pipe; 10. an oil outlet hole; 11. a rubber ring; 12. a mechanical seal; 13. a push rod; 14. a mounting plate; 15. a spring; 16. a rubber sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the utility model provides an eight-gear shifting cylinder technical scheme: including cylinder body 1, logical groove 6 and annular communicating pipe 9, the one end of cylinder body 1 is equipped with push rod 13, the one end fixed mounting panel 14 that is provided with of keeping away from cylinder body 1 of push rod 13, the one end periphery of push rod 13 is located to the mounting panel 14 cover, the fixed rubber sleeve 16 that is provided with between the front end of the one end casing that is equipped with push rod 13 of mounting panel 14 and cylinder body 1 fixed connection, the both ends of rubber sleeve 16 are equipped with lubrication groove 4 through sealed waterproof glue respectively with mounting panel 14 and cylinder body 1 fixed connection, one side of the one end that is equipped with push rod 13 of cylinder body 1, the inside top one side of lubrication groove 4 is equipped with logical groove 6, the bottom of logical groove 6 extends to cylinder body 1 and is equipped with push rod 13 one end and is close to the position of push rod 13 periphery, and with the inside intercommunication of rubber sleeve 16, the one end inboard fixed mounting of cylinder body 1 is equipped with the lantern ring 8, the inside of lantern ring 8 is equipped with annular communicating pipe 9, one side of annular communicating pipe 9 is through the sealing washer and push rod 13 in close contact, the top of annular communicating pipe 9 is through 7 and the inside sealing intercommunication of lubrication groove 4, the inside of annular 9 is equipped with a plurality of delivery pores 10, the opening part and push rod 13 contact.

Specifically, the rubber sleeve 16 has a double-layer structure, a spring 15 is arranged in the sleeve body of the rubber sleeve 16, and two ends of the spring 15 are fixedly connected with the mounting plate 14 and one end of the cylinder body 1 provided with the push rod 13 respectively.

Specifically, the surface of oil outlet 10 is equipped with rubber ring 11, and rubber ring 11 passes through the mode fixed mounting of veneer and the outside surface of oil outlet 10, and rubber ring 11 and push rod 13 contact, and the inboard of rubber ring 11 is the arc structure.

Specifically, the cylinder body 1 is provided with a mechanical seal 12 inside one end of the push rod 13, and the cylinder body 1 is slidably and hermetically connected with the push rod 13 through the mechanical seal 12.

Specifically, the top of lubrication groove 4 is equipped with sealed lid 5, and sealed lid 5 is through inside sealed pad and screw thread that are equipped with and the top oil filler point sealing connection of lubrication groove 4.

Specifically, eight air inlets 2 are formed in one side of the outer portion of the cylinder body 1, and the eight air inlets 2 are formed in one side of the outer portion of the cylinder body 1 at equal intervals.

Specifically, the outside both sides of cylinder body 1 are equipped with mounting hole 3, and mounting hole 3 passes through the mounting and with welded mode fixed mounting and the outside of cylinder body 1.

In this embodiment, in the in-process of using, flexible can lead to stretching or shrink to rubber sleeve 16 of push rod 13 for the atmospheric pressure in the rubber sleeve 16 changes, when the inside shrink of push rod 13 to cylinder body 1, rubber sleeve 16 follows the shrink of push rod 13 and contracts, make its inside air receive the compression, and under the supporting effect of spring 15, make rubber sleeve 16 only appear contracting, avoid because the condition that the atmospheric pressure increase leads to the inflation appears, influence the effect of oil production, make the inside of lubrication groove 4 is gone into to the air compressed in the rubber sleeve 16 through the logical groove 6, utilize the effect of atmospheric pressure, extrude the lubricating oil in the lubrication groove 4, make it flow into oil outlet 10 along connecting pipe 7 and annular communicating pipe 9, thereby make lubricating oil adhere to on the push rod 13, and in the in-process that push rod 13 removed, the inboard arc of rubber ring 11 scrapes evenly, thereby realize self-lubricating purpose, when push rod 13 outwards extends, make its inside atmospheric pressure reduce, the inside air in the lubrication groove 4 is inhaled inside the rubber sleeve 16, make the inside of lubrication groove 4 be produced in the lubrication groove 4, thereby the lubrication groove 7, the unnecessary is avoided leading to the inside of the unnecessary communicating pipe of the inside of lubrication groove 9 and the unnecessary is inhaled by the large-volume of the connecting pipe 10 after the extrusion surface of the lubricating groove 4.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Eight shift cylinder, including cylinder body (1), logical groove (6) and annular communicating pipe (9), its characterized in that: the utility model discloses a sealing device for a cylinder body, which comprises a cylinder body (1), wherein one end of the cylinder body (1) is provided with a push rod (13), one end of the push rod (13) far away from the cylinder body (1) is fixedly provided with a mounting plate (14), one end periphery of the push rod (13) is sleeved with the mounting plate (14), a rubber sleeve (16) is fixedly arranged between the mounting plate (14) and the front end of a one-end shell body of the cylinder body (1) provided with the push rod (13), two ends of the rubber sleeve (16) are respectively fixedly connected with the mounting plate (14) and the cylinder body (1) through sealing waterproof glue, one side of one end of the cylinder body (1) provided with the push rod (13) is provided with a lubrication groove (4), one side of the inner top end of the lubrication groove (4) is provided with a through groove (6), the bottom end of the through groove (6) extends to the position of the cylinder body (1) near the periphery of the push rod (13) and is communicated with the inner side of the rubber sleeve (16), one end inner side of the cylinder body (1) provided with a sleeve ring (8) is fixedly arranged with a ring (9) of the push rod (13), the inner side of the cylinder body (8) is provided with a ring (9) which is provided with a ring-shaped communicating pipe (9) which is in close contact with the connection pipe (13), the top of annular communicating pipe (9) is through connecting pipe (7) and the inside sealed intercommunication of lubrication groove (4), the inboard of annular communicating pipe (9) is equipped with a plurality of oil outlet (10), the opening part and the push rod (13) contact of oil outlet (10).

2. The eight shift cylinder according to claim 1, wherein: the rubber sleeve (16) is of a double-layer structure, a spring (15) is arranged in the sleeve body of the rubber sleeve (16), and two ends of the spring (15) are fixedly connected with one end of the mounting plate (14) and one end of the cylinder body (1) provided with the push rod (13) respectively.

3. The eight shift cylinder according to claim 1, wherein: the surface of oil outlet (10) is equipped with rubber ring (11), rubber ring (11) are through the mode fixed mounting of veneer and oil outlet (10) outside surface, rubber ring (11) and push rod (13) contact, the inboard of rubber ring (11) is the arc structure.

4. The eight shift cylinder according to claim 1, wherein: the cylinder body (1) is provided with a mechanical sealing piece (12) at the inner part of one end of the push rod (13), and the cylinder body (1) is in sliding and sealing connection with the push rod (13) through the mechanical sealing piece (12).

5. The eight shift cylinder according to claim 1, wherein: the top of lubrication groove (4) is equipped with sealed lid (5), sealed lid (5) are equipped with through inside sealed pad and screw thread and the top oil filler point sealing connection of lubrication groove (4).

6. The eight shift cylinder according to claim 1, wherein: eight air inlets (2) are formed in one side of the outer portion of the air cylinder body (1), and the eight air inlets (2) are formed in one side of the outer portion of the air cylinder body (1) at equal distances.

7. The eight shift cylinder according to claim 1, wherein: the cylinder is characterized in that mounting holes (3) are formed in two sides of the outer portion of the cylinder body (1), and the mounting holes (3) are fixedly mounted on the outer portion of the cylinder body (1) in a welding mode through mounting pieces.